According to Reuters, LG and Samsung will be responsible for the future production of OLED screens for those next generation iPhones that everybody expects each new year.

Those new screens won’t arrive soon enough, though. Engadget points out that the Apple Watch already uses that kind of screen -it seems that doesn’t do any magic trick to its battery life- and Nikkei estimates that the iPhones with OLED screens will start to show up in 2018.

This adds up to previous rumors that let us know that Apple is opening a secret lab in Taiwan whose unique goal is to develop the screens of the future. Apple is trying to control more and more hardware components on their devices, and it seems OLED screen will try to be the next key differentiator against the competition.